This module implements the same interface as Math::Random::ISAAC and can be used as a drop-in replacement.
This is the recommended implementation of the module,
based on Bob Jenkins' reference implementation in C.

Selecting the backend to use manually really only has two uses:

If you are trying to avoid the small overhead incurred with dispatching method calls to the appropriate backend modules.

If you are testing the module for performance and wish to explicitly decide which module you would like to use.

But this is really just a legal technicality that allows the author to offer this package under the public domain and also a variety of licensing options. For all intents and purposes, this is public domain software, which means you can do whatever you want with it.

The software is provided "AS IS", without warranty of any kind, express or implied, including but not limited to the warranties of merchantability, fitness for a particular purpose and noninfringement. In no event shall the authors or copyright holders be liable for any claim, damages or other liability, whether in an action of contract, tort or otherwise, arising from, out of or in connection with the software or the use or other dealings in the software.